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Example sentences for: dubia

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With the daphnid, Ceriodaphnia dubia, and fathead minnow, Pimephales promelas, tests, effluents and receiving waters should be filtered through a 60-µm plankton net to remove indigenous organisms that may attack or be confused with the test organisms (see the daphnid, Ceriodaphnia dubia, test method for details).
The organisms used in the short-term chronic toxicity tests described in this manual are the fathead minnow, Pimephales promelas, the daphnid, Ceriodaphnia dubia (Berner, 1986), and the green alga, Selenastrum capricornutum.
The test organisms used in the procedures described in this manual are the fathead minnow, Pimephales promelas, the daphnid, Ceriodaphnia dubia, and the green alga, Selenastrum capricornutum.
Reproduction data from the daphnid, Ceriodaphnia dubia, survival and reproduction test are analyzed using hypothesis testing or point estimation techniques according to the flowchart in Figure 2. In hypothesis testing, data from effluent concentrations that have significantly lower survival than the control, as determined by Fisher's Exact test, are not included in the hypothesis tests for reproductive effects.
Berner (1986) studied the problem and determined that perhaps as many as three variant forms were involved and it was decided to recommend the use of the more common Ceriodaphnia dubia rather than the originally reported Ceriodaphnia reticulata.